Application of Ordinal Optimization to Reactive Volt-Ampere Sources Planning Problems

Abstract

Reactive volt-ampere sources planning is an effort to determine the most effective investment plan for new reactive sources at given load buses while ensuring appropriate voltage profile and satisfying operational constraints. Optimization of reactive volt-ampere sources planning is not only a difficult problem in power systems, but also a large-dimension constrained optimization problem. In this paper, an ordinal optimization-based approach containing upper and lower level is developed to solve this problem efficiently. In the upper level, an ordinal search (OS) algorithm is utilized to select excellent designs from a candidate-design set according to the system’s structural information exploited from the simulations executed in the lower level. There are five stages in the ordinal search algorithm, which gradually narrow the design space to search for a good capacitor placement pattern. The IEEE 118-bus and IEEE 244-bus systems with four load cases are employed as the test examples. The proposed approach is compared with two competing methods; the genetic algorithm and Tabu search, and a commercial numerical libraries (NL) mixed integer programming tool; IMSL Numerical Libraries. Experimental results illustrate that the proposed approach yields an outstanding design with a higher quality and efficiency for solving reactive volt-ampere sources planning problem.

A novel ameliorated Harris hawk optimizer for solving complex engineering optimization problems

“…19 A profound amount of research has been undertaken to obtain the most cost-efficient, secured optimal reactive power dispatch, which could have a great impact on the economy of the power generation process. [20][21][22][23][24][25] As the power system has evolved through incessant growth in interconnections, utilization of FACTS controller has provided greater stability and reliability. Different series and shunt connected FACTS devices have been proposed in literature for optimal reactive power dispatch solution.…”

“…Exploration defines the ability to diversify in the search space to traverse maximum area whereas exploitation is to intensify the search in the later stage to attain global optimum 19 . A profound amount of research has been undertaken to obtain the most cost‐efficient, secured optimal reactive power dispatch, which could have a great impact on the economy of the power generation process 20–25 . As the power system has evolved through incessant growth in interconnections, utilization of FACTS controller has provided greater stability and reliability.…”

Voltage Constrained Reactive Power Planning by Ameliorated HHO Technique

“…A multilevel methodology is designed by incorporating fast voltage stability index device in [13] using differential search algorithm technique for reactive power planning. An ordinal optimization-based approach is described in [14] for reactive volt-ampere sources problem. The proposed method describes the comprehensive which is implemented for reduction of true power losses and progress in voltage.…”

A Novel Method of Optimal Capacitor Placement in the Presence of Harmonics for Power Distribution Network Using NSGA-II Multi-Objective Genetic Optimization Algorithm

“…So far, extensive studies were done to locate the capacitor and determine its optimum type and capacity without harmonics [11][12][13].…”